Tolerance of the anti-nuclear crowd by many climate activists — including those who continue to celebrate an agreement on carbon dioxide between the U.S. and China providing for immediate U.S. action in exchange for a gauzy commitment by China to begin reducing CO2 emissions around 2030 — is puzzling.

Unlike wind and solar power, which impose challenging requirements on the electrical grid because of their variability and unpredictability, nuclear power is available 24/7 in addition to being non-carbon.